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Fynjy0 [20]
3 years ago
10

A triangle is reflected across the line x=2. which of the following is true?

Mathematics
2 answers:
exis [7]3 years ago
7 0

Answer: C

Step-by-step explanation:

alexdok [17]3 years ago
5 0

Answer:

C. the image and pre-image are congruent.  

Step-by-step explanation:

a triangle is reflected across the line x=2

Check with each option

A. the image and pre-image have the same orientation.

The image will not be in same order

B. the image and pre-image have different sizes. the size will not change

C. the image and pre-image are congruent. the reflection will not change the size. so they are congruent

D. the image and pre-image are separated by a given angle.

The angles never change in reflection

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STEP 1

Mean = \frac{300+785+670+187+760+724}{6} = \frac{3426}{6}=571

STEP 2

Subtract the mean from each data value then square the answer
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STEP 3

Add the squared answers in STEP 2 then find the mean

\frac{73441+45796+9801+147456+35721+23409}{6}= \frac{335624}{6}=55937.3

STEP 4

Square root the answer in STEP 3
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Standard deviation is 236.5
 
7 0
3 years ago
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